Adjustable platform.



PATENTED MAY 23,1905.

2'SHEETB`BHBBT l.

- H. BOELTER.

ADJUSTABLE PLATFORM.

APPLIUATION FILED 00T.10, 1904.

J A .l

Patented May 23, 1 905.

PATENT OEEICE.

HUGO BOELTER, OF TOLEDO, OHIO.

ADJUSTABLE PLATFORM.

SPECIFICATION forming part of Letters Patent No. 790,341, dated May 23, 1905. Application ined october 1o, 1904. seria No. 227,897.

To all whom it may concern.

Beit known that I, I-IUeo BOELTER, a citizen ',of the United States, residing at Toledo, in

the county of Lucas and State of Ohio, have invented a newand useful Improvement in Adjustable Platforms, of which the following is a specification. r

vThis invention relates to a platform upon which a model stands, the object of the invention bein@r an im )rovement in means for fitb l ting ladies skirts. The platform has its upper peripheral portion inthe form of a vertically-movable ring which may be raised to the desired height. The skirt falls over the ring, and the lower edge of the skirt is held against the periphery of the ring and a suitable mark made. The exact length of the skirt as when in use can thus be accurately determined.

The invention consists in a platform cornprising an essentially stationarycenter and a vertically-movable periphery.

The invention further consists in the novel features of construction and combination of parts hereinafter described, pointed out in the claims, and shown in the accompanying draw ings, in which- I Figure 1 is a side elevation of my preferred form. Fig. 2 is a plan view of the same. Fig. 3 is a detail sectional view showing the ring elevated. Fig. 4 is a modified form yof construction, the movable parts being shown in elevation and the platform and ring in section. Fig. 5 is a sectional plan view of the construction shown in Fig. 4, the section being taken immediately below the platform. Fig. 6 is a detail View showing a portion of the modified form with the ring lifted above the plane of the platform.

In the drawings,`A represents a circular platform having its periphery cut away and a vertically-movable ring A' restingin the cutout portion. The platform A is supported by the legs A2, and beneath the platform is suspended on a suitable shaft inclosed in a casing O a rotatable disk B. Arms B' are pivoted atv their outer ends to the legs A2, and their inner ends rest freely upon the disk B. Thearms B'areslottedlongitudinally,asshown at B2, and a pin B3 is arranged on the disk B supports.

and engages the slot B2, there being one pin for each arm. To the inner free ends of the arms B' are pivoted the inner ends of elastic steel spring-strips E. These strips pass under and upwardly on the outer face of rollers D,

being held in engagement with the rollers D by smaller rollers D'. The strips E pass freely through the marginal portion of the platform A and are connected to the ring A' and are sufficiently stiff to lift and hold the ring A' vertically above the plane of the platform A. A handle F is connected at its inner end to the disk B, and by means of the same the disk will be rotated. During such rotation the pins B3 in engagement with the slots B2 of the arms B' will swing the arms on their pivot-points, and this movement will be transmitted to the strips E in the form of a positive movement inward or outward, owing to the direction of rotation of the disk, and the ring will be elevated or lowered.

In Figs. 4, 5, and 6 I have shown a modification in the manner of actuating the ringrIhe construction of the platform and ring is unchanged; but asquare casing C' depends below the center of the platform'A and contains a central shaft O2, and the bottom of the casing C' has on one side a lateral extension O3. The sides of the casing are slotted, and working through the same are four rack-bars J, arranged in pairs, the pairs being at right angles to each other. In the square space formed within the casing C', between the rack-bars J, is arranged a spurgear K', carried bya sleeve K, fitted upon the shaft C2. rlhe gear. K' meshes with the rackbars J, and each bar of a pair is thereby moved in a direction opposite the bar parallel to it, the bars constituting a pair being` arranged on opposite sides of the spur-gear K'. To the outer ends of the bars J are connected steel strips J', corresponding in every way to the strips E. The extension O3 of the bottom of the casing C' carries a spur-gear L. A handle M is connected to the sleeve K and carries a rack-segment L', which meshes with the spur-gear L and acts as a controller for the spur-gear K and racks J. Adjacent the outer end of the handle M is arranged a rack or smooth segment M', depending from the IOO under side of the platform Aand upon which the handle rests and moves. A hand-grasp M2 is bifurcated at its inner end and the bifurcation fitted over the outer end portion of the handle M and pivoted thereto. handle has been moved into any desired position on the segment M, the hand-grasp can be turned downward at right angles to the handle M, and the inner end of the hand-grasp M2 will engage the under face of the platform A and serve to hold the handle in its adjusted position. A scale O is laid out upon the periphery of the platform A below the cut-out portion, and the hand-grasp not only serves as a convenient means for moving the handle M and asa lock, but also as a pointer indicating upon the scale when turned at right angles to the handle M the exact height in inches or fractions thereof to which the ring A" has been elevated with respect to its normal position on the platform, and it will be noted that normally the upper edge ofthe ring is flush with the top of the platform A.

It Will be understood that the scale, as shown at O, is placedV on both forms of the device, as the lplatform is the same in construction, and in Figs. 1 and 2 the upwardly-curved'end F' of the handle F serves as the pointer on the scale.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A device of the kind described comprising a stationary platform having its marginal portion cut away adjacent the upper face of the platform, a ring adapted to rest in said cut-out portion, and means for raising the ring above the platform.

2. A device of the kind described comprising a platform, a vertically-movable ringcarried by the platform, means for elevatiugthe ring, a handle adapted to aotuate said means, and a scale laid olil upon the side of the platform, the outer end portion of the handle being adjacent the scale.

3. A device of the kind described comprising` a circular platform, a ring thereon, legs supporting the platform, rollers carried by the sides of the supporting-legs, elastic steel strips connected at one end to the ring and guided by the said rollers, and meansarranged below the platform for reciprocatiui,r the strips.

HUG() BOELTER.

lVitnesses:

ALONZO G. Dunn, Bassin Joi-INsoN. 

